Answer:
Step-by-step explanation:
take angle B as reference angle
using cosec rule
cosec B=hypotenuse/opposite
cosec B=13/12
cosec B=1.08
B=cosec 67
B=67 degree
for ratio,
cosec B=13/12
Answer:
Step-by-step explanation:
It is already in standard form and can be expressed in scientific form as:

Its 1 and 9/7..............
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